ah jai has the most powerful lens in the world

ah jai has the most powerful lens in the world
when the sun light is strong, she change her lens to F64at night time, she open it to F1.2I think she can open it bigger but since it's hard to take pic of her in the dark condition, i don't have that pic. will update it when i took that pic.did anyone actually calculate the f/stop of a cat?